Abstract In this research, the magnetic and structural properties of the Fe-23Cr-9Co alloy were investigated. The obtained results showed that the existence of non-magnetic phases in the casting structure or the presence of metallurgical defects in the forged structure had a destructive effect on the magnetic properties. The use of different aging methods showed that each of them had a positive effect on the magnetic properties. It was also found that isothermal aging, in the absence of the magnetic field, with the increase in aging time, was only able to enhance the coercive force to a certain extent. The maximum coercive force achieved was 16 Oe. Also, aging by the continuous cooling method increased the coercive force to 18 Oe. Further, the use of thermo-magnetic treatment produced an anisotropic magnetic effect. In this method, the coercive force was increased with raising the temperature, such that the maximum coercive force of this method was 13 Oe, as obtained at 640 °C. The use of step aging also increased the difference in the chemical composition of α1 and α2 phases, leading to an increase in the coercivity up to 105 Oe.

中文翻译：

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不同热处理对Fe-Cr-Co硬磁合金磁性能的影响

摘要 本研究对Fe-23Cr-9Co合金的磁性能和结构性能进行了研究。所得结果表明，铸造组织中非磁性相的存在或锻造组织中存在的冶金缺陷对磁性能有破坏作用。使用不同的老化方法表明，它们中的每一种都对磁性能产生积极影响。还发现，在没有磁场的情况下，等温时效随着时效时间的增加，只能在一定程度上提高矫顽力。获得的最大矫顽力为16 Oe。此外，通过连续冷却方法进行时效将矫顽力提高到 18 Oe。此外，热磁处理的使用产生了各向异性磁效应。在这种方法中，矫顽力随着温度的升高而增加，因此该方法的最大矫顽力为 13 Oe，在 640 °C 下获得。使用阶梯时效还增加了 α1 和 α2 相的化学成分差异，导致矫顽力增加到 105 Oe。